登録情報 データベース : PDB / ID : 5thr 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of a BG505 Env-sCD4-17b-8ANC195 complex 要素(8ANC195 G52K5 ...) x 2 17b Fab VH domain 17b Fab VL domain BG505 SOSIP gp120 BG505 SOSIP gp41 T-cell surface glycoprotein CD4 残り2件を表示 表示を減らす 詳細キーワード VIRAL PROTEIN / cryo-EM / HIV-1 Env / CD4機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / positive regulation of kinase activity / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of monocyte differentiation ... helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / positive regulation of kinase activity / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / Other interleukin signaling / extracellular matrix structural constituent / T cell receptor complex / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / macrophage differentiation / regulation of calcium ion transport / Generation of second messenger molecules / T cell differentiation / Co-inhibition by PD-1 / positive regulation of protein kinase activity / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / cell surface receptor protein tyrosine kinase signaling pathway / host cell endosome membrane / protein tyrosine kinase binding / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / positive regulation of T cell activation / MHC class II protein complex binding / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / positive regulation of protein phosphorylation / virus receptor activity / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of canonical NF-kappaB signal transduction / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / cell adhesion / viral protein processing / immune response / membrane raft / endoplasmic reticulum lumen / external side of plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / lipid binding / viral envelope / endoplasmic reticulum membrane / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 ... CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold 類似検索 - ドメイン・相同性 T-cell surface glycoprotein CD4 / Envelope glycoprotein gp160 類似検索 - 構成要素生物種 Human immunodeficiency virus 1 (ヒト免疫不全ウイルス)Homo sapiens (ヒト)手法 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 8.9 Å 詳細データ登録者 Wang, H. / Bjorkman, P.J. 資金援助 米国, 3件 詳細 詳細を隠す組織 認可番号 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) 2 P50 GM082545-06 米国 National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) HIVRAD P01 AI100148 米国 Bill & Melinda Gates Foundation Collaboration for AIDS Vaccine Discovery Grant 1040753 米国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2016タイトル : Cryo-EM structure of a CD4-bound open HIV-1 envelope trimer reveals structural rearrangements of the gp120 V1V2 loop.著者 : Haoqing Wang / Alexander A Cohen / Rachel P Galimidi / Harry B Gristick / Grant J Jensen / Pamela J Bjorkman / 要旨 : The HIV-1 envelope (Env) glycoprotein, a trimer of gp120-gp41 heterodimers, relies on conformational flexibility to function in fusing the viral and host membranes. Fusion is achieved after gp120 ... The HIV-1 envelope (Env) glycoprotein, a trimer of gp120-gp41 heterodimers, relies on conformational flexibility to function in fusing the viral and host membranes. Fusion is achieved after gp120 binds to CD4, the HIV-1 receptor, and a coreceptor, capturing an open conformational state in which the fusion machinery on gp41 gains access to the target cell membrane. In the well-characterized closed Env conformation, the gp120 V1V2 loops interact at the apex of the Env trimer. Less is known about the structure of the open CD4-bound state, in which the V1V2 loops must rearrange and separate to allow access to the coreceptor binding site. We identified two anti-HIV-1 antibodies, the coreceptor mimicking antibody 17b and the gp120-gp41 interface-spanning antibody 8ANC195, that can be added as Fabs to a soluble native-like Env trimer to stabilize it in a CD4-bound conformation. Here, we present an 8.9-Å cryo-electron microscopy structure of a BG505 Env-sCD4-17b-8ANC195 complex, which reveals large structural rearrangements in gp120, but small changes in gp41, compared with closed Env structures. The gp120 protomers are rotated and separated in the CD4-bound structure, and the three V1V2 loops are displaced by ∼40 Å from their positions at the trimer apex in closed Env to the sides of the trimer in positions adjacent to, and interacting with, the three bound CD4s. These results are relevant to understanding CD4-induced conformational changes leading to coreceptor binding and fusion, and HIV-1 Env conformational dynamics, and describe a target structure relevant to drug design and vaccine efforts. 履歴 登録 2016年9月30日 登録サイト : RCSB / 処理サイト : RCSB改定 1.0 2016年11月16日 Provider : repository / タイプ : Initial release改定 1.1 2016年11月30日 Group : Database references改定 1.2 2017年9月27日 Group : Author supporting evidence / Data collection / Database referencesカテゴリ : citation / em_image_scans ... citation / em_image_scans / em_software / pdbx_audit_support Item : _citation.journal_id_CSD / _em_software.name / _pdbx_audit_support.funding_organization改定 1.3 2018年7月18日 Group : Data collection / カテゴリ : em_software / Item : _em_software.name改定 1.4 2018年10月3日 Group : Data collection / Other ... Data collection / Other / Refinement description / Structure summary カテゴリ : cell / em_entity_assembly / refineItem : _cell.Z_PDB / _cell.length_a ... _cell.Z_PDB / _cell.length_a / _cell.length_b / _cell.length_c / _em_entity_assembly.entity_id_list 改定 1.5 2019年12月11日 Group : Author supporting evidence / カテゴリ : pdbx_audit_support / Item : _pdbx_audit_support.funding_organization改定 1.6 2019年12月18日 Group : Other / カテゴリ : atom_sitesItem : _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3]改定 2.0 2020年7月29日 Group : Advisory / Atomic model ... Advisory / Atomic model / Data collection / Derived calculations / Structure summary カテゴリ : atom_site / chem_comp ... atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_validate_close_contact / struct_asym / struct_conn / struct_site / struct_site_gen Item : _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ... _atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_entity_id / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id 解説 : Carbohydrate remediation / Provider : repository / タイプ : Remediation改定 2.1 2024年10月23日 Group : Data collection / Database references ... Data collection / Database references / Derived calculations / Structure summary カテゴリ : chem_comp / chem_comp_atom ... chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature / struct_conn Item : _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ... _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _struct_conn.pdbx_leaving_atom_flag
すべて表示 表示を減らす